Motion-picture screen and method of producing same



L. VRXHELL MOTION PICTURE SCREEN AND METHOD OF FRODUCING SAME Fil ed Fgb 22s, 1921 30 made of fabric, heavy paper Patented Jan. 8, 1924.

LINCOLN W. HILL, OF SAN FRANCISCO, CALIFORNIA.

MOTION-PICTURE SCREEN AND METHOD OF PROIJUCING SAME.

Application filed February 23, 1921.

To all whom it may concern.

Be it known that I, LINCOLN WV. HILn, a citizen of the United States, and resident of -San Francisco, county of San Francisco. State of California, have invented a new and useful Motion-Picture Screen and Method of Producing Same, of which the following is a specification.

The present invention relates to improvements in motion picture screens and methods of producing the same and its object is to produce a screen especially well adapted to reflect pictures thrown on the same by motion picture machines with a minimum strain on the human eye, a screen that is cheaply manufactured, may be made in one piece or in sections, to be assembled afterwards.

The preferred form of my invention is illustrated in the accompanying drawi n in which Figure 1 represents a plan view 0 my screen, parts being broken away to show the different layers constituting my screen, Figure 2 shows a cross-section through the same along line 22 Figure 1 and Figure 3a cross-section through a joint of two sections.

Referring to the drawing more particularly, the back (2) of my screen (1) is or practically any flexible material of suflicient strength and pliability to give body to the screen. In case a fabric is used I stretch it on a frame, so as to insure uniformity of surface To 3 this back I apply a heavy coat of adhesive dressing (3). The latter consists of a mixture of glue and linseed oil. Before this coat has become dry I spread over the same a layer of small particles of dry woody material (4) such as coarse saw dust, ground Serial No. 447,699.

cork or crushed cereals, adapted to give to the screen a rough uneven surface. After this has become thoroughly. dry. I apply a coat of size and after that a series of coats of paint. While this paint is still in a moist, tacky condition, I apply to it a coat of dry aluminum (5), polishing the same thoroughly. with a dry brush.

This screen may be made in one piece or in sections to be assembled upon arrival at the place where it is to be'used. When it is made in sections, the latter should be trimmed with a sharp knife so that their respective borders may be abutted. When thus prepared they can be fixed to the wall like any wall paper, by applying paste either to the wall or to the back of the screen and carefully joining the borders.

I claim:

1. A screen for exhibiting motion pictures consisting substantially of a flexible backing, a coat of adhesive material applied thereto, small particles of dry vegetal material imbedded therein, the latter being coated with paint and a metallic powder.

2. A screen for exhibiting motion pictures consisting of a flexible backing. a coat of adhesive material containing glue and linseed oil applied thereto,'small particles of dry vegetal material embedded therein, the latter being coated with paint and a metallic powder.

3. The process of producing a moving picture screen which consists in cementing small particles of dry vegetal material to a backing, coating the material with paint and brushing a metallic powder into the paint while the latter is still tacky.

LINooLN w. HILL. 

